Garden Frogs British The Common Frog can vary in colour greatly from light yellow, green, olive, brown, and towards red often with markings in patches, marbled and spots, the underside is white to pale yellow. Size is up to 10cm. relatively short legs. The dorsal folds which run the length of the back are closely spaced. The ear drum can be seen clearly with a dark mask behind the eye. The males have internal vocal sac's and are only usually heard in the mating season February to April. Spawn is a large mass of 3000 to 4000 eggs . Lives mostly on the land and returns to the water for breeding. Green Frogs Marsh Frog Edible Frog and Pool Frog The male of the Green Frogs have a white or grey vocal sac's at the corners of the mouth and are more vocal than the Brown Frog. The Green Frogs don't have a visible mask behind the eyes, and are more aquatic. Size is up to 15cm, colouring variable from green to brown often with a pale yellow or green stripe along the centre of the back. Toads Common Toad and Natterjack Toad Toads tend to be drier looking with warts and stouter in form with variable colouring. Size is up to 15cm Common Toad and the Natterjack Toad up to 10cm. In the water the female will lay thousands of eggs in long strings. The toads tend to be nocturnal with the Natterjack Toad found in sandy areas. Fogs will be seen gathering in ponds between January and March each year where they will spawn. In about their fifth spring Frogs will go back to the water to breed. The males grow horny pads on their front feet to help them grip the females. The male will grip the female from the back and swim together for a number of days when the female will lay between 1,000 and 3,000 eggs which the male will fertilize. The eggs are massed together in shallow, still water, the jelly around the eggs swells to about 6 mm in diameter. The eggs quickly develop and produce Tadpoles after 2 or 3 weeks, with tail and external gills. The external gills are absorbed after about 4 weeks. At 7 weeks hind legs appear. The front legs develop in side the skin. At 12 weeks the tale is absorbed, the front legs appear and the lungs are used. The development of the tadpoles will depend on temperature and availability of food. From: http://www.frogs-watch.co.uk/frogs.html .. Join them there
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